Non-Diffractive Bessel Beams for Ultrafast Laser Scanning Platform and Proof-Of-Concept Side-Wall Polishing of Additively Manufactured Parts - Archive ouverte HAL Access content directly
Journal Articles Micromachines Year : 2020

Non-Diffractive Bessel Beams for Ultrafast Laser Scanning Platform and Proof-Of-Concept Side-Wall Polishing of Additively Manufactured Parts

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1
Huu Dat Nguyen
  • Function : Author
Xxx Sedao
  • Function : Author
  • PersonId : 1085291
Cyril Mauclair
  • Function : Author
  • PersonId : 866141
Guillaume Bidron
  • Function : Author
  • PersonId : 1099175
Nicolas Faure
  • Function : Author
  • PersonId : 873503
Enrique Moreno
  • Function : Author
  • PersonId : 1099176
Razvan Stoian

Abstract

We report the potential use of non-diffractive Bessel beam for ultrafast laser processing in additive manufacturing environments, its integration into a fast scanning platform, and proof-of-concept side-wall polishing of stainless steel-based additively fabricated parts. We demonstrate two key advantages of the zeroth-order Bessel beam: the significantly long non-diffractive length for large tolerance of sample positioning and the unique self-reconstruction property for un-disrupted beam access, despite the obstruction of metallic powders in the additive manufacturing environment. The integration of Bessel beam scanning platform is constructed by finely adapting the Bessel beam into a Galvano scanner. The beam sustained its good profile within the scan field of 35 × 35 mm 2. As a proof of concept, the platform showcases its advanced capacity by largely reducing the side-wall surface roughness of an additively as-fabricated workpiece from Ra 10 µm down to 1 µm. Therefore, the demonstrated Bessel-Scanner configuration possesses great potential for integrating in a hybrid additive manufacturing apparatus.
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Dates and versions

ujm-03230416 , version 1 (19-05-2021)

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Huu Dat Nguyen, Xxx Sedao, Cyril Mauclair, Guillaume Bidron, Nicolas Faure, et al.. Non-Diffractive Bessel Beams for Ultrafast Laser Scanning Platform and Proof-Of-Concept Side-Wall Polishing of Additively Manufactured Parts. Micromachines, 2020, 11, ⟨10.3390/mi11110974⟩. ⟨ujm-03230416⟩
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